Users July 2020

users@lists.einsteintoolkit.org

13 participants
24 discussions

encountering problem while running command
by Physics for everyone 20 Jul '20

20 Jul '20

Respected sir/maam im facing issue while running simple "Hello world command. im running it on online sever. Please help me facing this issue. I am attaching the screenshot for your reference.

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Postdoctoral position in computational astrophysics
by Agnieszka Janiuk 17 Jul '20

17 Jul '20

Dear colleagues, I am looking for a postdoctoral researcher working in the area of computational astrophysics. The main focus of the planned research is on gamma ray bursts central engines, and their outflows, including chemical enrichment of the interstellar plasma by these explosions and heavy element radioactivities. The post-doc will also collaborate with other team members on the development of the GR MHD numerical tools and large scale jet modeling. The position will be for 3 years. The starting date is negotiable but could be as early as October 2020. The formal job advertisement has been put on AAS Job register and on the EAS website. Please forward this email to anybody that you think might be interested! Contact address for further questions: agnes @ cft.edu.pl regards Agnieszka Janiuk -- -- dr hab. Agnieszka Janiuk (prof. CFT PAN) | tel. +48 22 116 20 06 Center for Theoretical Physics | fax. +48 22 843 13 69 Polish Academy of Sciences | www: http://www.cft.edu.pl/astrofizyka Al. Lotnikow 32/46 | 02-668 Warsaw, Poland |

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North American EinsteinToolkit Virtual Workshop, August 3-7
by Steven R. Brandt 17 Jul '20

17 Jul '20

We are planning to have an online EinsteinTookit Workshop at LSU this August. You can register for this event. Registration is free, but it helps us to know how many students to expect so that we can properly provision our tutorial servers. Planned Speakers include: Peter Diener, Zachary Etienne, Bruno Giacomazzo, Roland Haas, Eric Schnetter, Helvi Witek, and Yosef Zlochower. Students will be able to make short presentations if they are interested. So far, these include Terrence Pierre Jacques and Patrick Nelson. More are wellcome. https://www.cct.lsu.edu/Einsteintoolkitworkshop

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Meeting Minutes 2020-07-16
by Gabella, William E 16 Jul '20

16 Jul '20

Present: Peter D, Bill G, Roland H, Federico C, Yosef Z, Miguel G, Atul K, Zach E, Steve B Chair: Peter D Minutes: Bill G * Online ET Workshop, https://www.cct.lsu.edu/Einsteintoolkitworkshop , August 3-7 2020 [SB] ** Speakers for August meeting https://docs.google.com/spreadsheets/d/11waMmS73k6mxBxQVIC6eZH4hFjLsxVpH_tg… Use above link to signup for presenting talks. Looking for more workshop-like, or if interested in hearing some topics...lecture and tutorials. Maybe also lightning talks for small projects, or for students. Have 7 speakers listed (as of now). No registration for attendance, so that count is unclear. Format is four days and only mornings, 9am to noon US Central Time, so about half of the usual time...more school than workshop, mabe. Might be YouTube live stream, or other. Want more social interaction, the "coffee break"-like time. Expect to transfer earlier, in-person, registration to the online ones. Zach, helped with a Zoom workshop recently, instead of asking for contributions, they asked people directly "please give a talk"---Steve is doing this. Yosef Z could give a NL wave equation tutorial...hands-on would be one hour. Frank Loeffler talking about Neutron Stars. See above link for others. Attendees? Steve will add a registration to capture attendees. Will advertise on ETK outlets. We all should encourage students and colleagues to attend. Zach, tutorials hosted on Jupyter Hub at NCSA? Steve, no it will not work. Have one method at LSU that Steve knows will work and another that may. Zach, wonders about a docker image with compiled toolkit on it. Steve, should have that because tutorial server uses image. For other tutorials we have trimmed the thorn list to match the par file. Roland, it was Perl and also on Python. But it still makes sense to have it pre-compiled. Steve, switch from OpenMPI to MPIch because running multiple images on the same host is problematic with OpenMPI. Yosef, used VirtualBox for his class he taught, and that can also be difficult. * test.cactuscode.org https://github.com/EinsteinToolkit/cactuscode.org/issues?q=is:open+is:issue… [SB] Ongoing effort away from our supporting another server, want to move to GitHub. Steve needs help for this...and it is important to do. Student with summer project for web development would be nice. Jekyll is a static web page generation tool, powerful, with built-in loops, not fully dynamic, but might update/change from time to time. Ian H was using these features to do news feeds and table of contents. GH pages can do some of this functionality. Liquid macro language. * gallery testing: https://bitbucket.org/einsteintoolkit/tickets/issues?kind=task&milestone=ET… [RH] ** BNS: Shawn Rosofsky (UIUC). In progress, needs to be uploaded, some differences post-merger. Roland has to poke Shawn again. ** BBH: Peter Schaffarczyk (Kiel), Atul Kedia (Notre Dame) In progress. Atul, Contacted Wardell for the movies, and Bentivigna for the plots. ** Poisson gallery example, Bill was able to run Visit via a container from GitHub, on data using the psi.session file and plots (3D with slice of Psi function) are the same as before. * ET release manager search [RH] Manager should also have assistants. Is a bit of work, especially reminders to others to finish their work, reviews, etc. * reviewers for proposed inclusions [RH] Three inclusions below that are left for inclusion. Want into the Toolkit so that they are downloaded sooner rather than later, so that users could try this. Look to see if the Thorn breaks anything, and if not, let us include soon. This is different than a positive review...it not a positive review we can always remove it from the list. ** ReadInterpolate https://github.com/rhaas80/ReadInterpolate.git thorn ticket 2416 https://bitbucket.org/einsteintoolkit/tickets/issues/2416 no reviewer [RH] ** Power https://git.ncsa.illinois.edu/elihu/Gravitational_Waveform_Extractor ticket 2413 https://bitbucket.org/einsteintoolkit/tickets/issues/2413 Zach is reviewer waveform extractor (or its post-summer version) [RH] Zach, Power Package, not a thorn per se, more of a tool. He would like it as an option and not a separate download. Is really helps the integration of the toolkit, takes output and makes is useful for GW science. Need to tell user how to access Power. Can this be added to Jenkins? Doc test? Written in Python. Roland, Anything that is testable by a shell script can be tested by Jenkins. Roland, will try to make a release repo without the sample data (100 GB of so), and find a way for it to be downloaded. It will be part of the toolkit, like GetComponents. Will be in the Thornlist and it will have statements to download the Power script. Would probably put into bin directory as link. ** NRPYPn https://nbviewer.jupyter.org/github/zachetienne/nrpytutorial/blob/master/NR… ticket 2417 https://bitbucket.org/einsteintoolkit/tickets/issues/2417 [RH] * gcc-10/ gfortran-10 [RH] Roland, Needs review! Peter D has reviewed some parts. Will push into Master some of this. Backporting is a little more touchy, and needs separate review by someone other than Roland. This is affecting people, hearing from users that this hits them. ** have patches to make all tests run with gcc-10/gfortran-10 with no more failures directly tracked down to gcc-10/gfortran-10 documented changes ** https://bitbucket.org/einsteintoolkit/tickets/issues/2431/review-changes-re… ** should be backported along with other fixes ** urgently needs a reviewer unanswered question on mailing list https://www.einsteintoolkit.org/tools/unanswered.php open tickets sorted by update time https://bitbucket.org/einsteintoolkit/tickets/issues?status=open&status=new… Ticket 2436, Using Comet for production run is having some problems, but with System Topology helps with this. Peter D's example that all 16 threads ran on the same core. Roland, a caveat hwloc is important, and hwloc 1 and hwloc 2 are not API compatible. Not without risks but worth the effort. tickets ready for review https://bitbucket.org/einsteintoolkit/tickets/issues?status=new&status=open… Peter, Other items? None -- ===================================== William Gabella Research Assistant Professor Department of Physics and Astronomy Vanderbilt University Nashville, TN USA b.gabella(a)vanderbilt.edu<mailto:b.gabella@vanderbilt.edu> (o) 615-343-2713

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Einstein Toolkit Meeting Reminder
by users＠einsteintoolkit.org 15 Jul '20

15 Jul '20

Hello, Please consider joining the weekly Einstein Toolkit phone call at 9:00 am US central time on Thursdays. For details on how to connect and what agenda items are to be discussed, use the link below. https://docs.einsteintoolkit.org/et-docs/Main_Page#Weekly_Users_Call --The Maintainers

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Agenda for Thursday's Meeting
by users＠einsteintoolkit.org 13 Jul '20

13 Jul '20

Please update the Wiki with agenda items for Thursday's meeting. Thanks! https://docs.einsteintoolkit.org/et-docs/meeting_agenda --The Maintainers

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GPU support for the Einstein Toolkit
by Bruno Giacomazzo 10 Jul '20

10 Jul '20

Dear All, I would like to know if there is any plan to port the Einstein Toolkit to GPUs. This is something that we may also discuss at the next Einstein Toolkit workshop if there is time. The reason I'm asking is that in Italy, CINECA (part of the EU HPC consortium) just bought its new HPC cluster and it is completely GPU based (Marconi100, https://www.hpc.cineca.it/hardware/marconi100, currently ranked in the top 10 of the fastest supercomputers in the world). Speaking with people at CINECA, I was informed that HPC-Europe is moving to GPU and, while cpu codes will be still supported for the next 5 years (with some of the new clusters still having a limited number of nodes for cpu codes), the plan is to move to 100% GPU clusters at the EU level. I was indeed told that the latest 3 HPC clusters bought by HPC-Europe are GPU clusters. The next Italian HPC machine will also be a GPU cluster, with a limited number of cpu nodes (they estimate ~3500 nodes with GPUs and ~1000 nodes with cpus). Thanks, Bruno -- Prof. Bruno Giacomazzo Department of Physics University of Milano-Bicocca Piazza della Scienza 3 20126 Milano Italy email: bruno.giacomazzo(a)unimib.it phone: (+39) 02 6448 2321 web: http://www.brunogiacomazzo.org ---------------------------------------------------------------------- There are only 10 types of people in the world: Those who understand binary, and those who don't ----------------------------------------------------------------------

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meeting minutes for 2020-07-09
by Steven R. Brandt 09 Jul '20

09 Jul '20

Present: Alois Peter, Steve, Roland, Peter, Bill, Karissa Thigpen, Miguel Garcia, Atul Kedia Review GCC 10 tickets Someone should look at them Gallery Examples: Alois Peter, Atul Trouble generating figures Ian Hinder made, in communication Will update website, some figures have been updated Working on 3D animation, will talk to Barry Wardell (errors in mathematica) BNS example will be uploaded shortly. Spam filter is updated by Roland Running a mailserver at LSU Will eventually be shut down Could move server Speakers for the ETK workshop Would like to have Peter Diener (self force) Roland Haas (reduction interface) Roland will have a student in the Fall work on migrating from Jenkins to Github Actions. test.cactuscode.org I've made some updates news items Would appreciate help New SSI grant started July 1 Reform working groups Form working groups for 3 major goals Leads: Helvi (Canuda), Rhaas (CarpetX), Zach (NRPy+) Science Gateway (Steve) New Tutorial Server at LSU Porting to VM Certificate update problem visible: https://etk.cct.lsu.edu Elect new release chair Looking for volunteers Continuing issues with SVN servers Steve talked to IT support yesterday Call Chairs/Minute Takers: Peter Diener - Chair Bill - Minutes ??? - Chair Miguel - Minutes

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Einstein Toolkit Meeting Reminder
by users＠einsteintoolkit.org 08 Jul '20

08 Jul '20

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Agenda for Thursday's Meeting
by users＠einsteintoolkit.org 06 Jul '20

06 Jul '20

Please update the Wiki with agenda items for Thursday's meeting. Thanks! https://docs.einsteintoolkit.org/et-docs/meeting_agenda --The Maintainers

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Users July 2020